<template>
  <div id="pictureDetailPage">
    <a-row :gutter="[16, 16]">
      <!-- 图片展示区 -->
      <a-col :sm="24" :md="16" :xl="18">
        <a-card title="图片预览">
          <a-image style="max-height: 600px; object-fit: contain" :src="picture.url" />
        </a-card>
      </a-col>
      <!-- 图片信息区 -->
      <a-col :sm="24" :md="8" :xl="6">
        <a-card title="图片信息">
          <a-descriptions :column="1">
            <a-descriptions-item label="作者">
              <a-space>
                <a-avatar :size="24" :src="picture.userVo?.userAvatar" />
                <div>{{ picture.userVo?.userName }}</div>
              </a-space>
            </a-descriptions-item>
            <a-descriptions-item label="名称">
              {{ picture.name ?? '未命名' }}
            </a-descriptions-item>
            <a-descriptions-item label="简介">
              {{ picture.introduction ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="分类">
              {{ picture.category ?? '默认' }}
            </a-descriptions-item>
            <a-descriptions-item label="标签">
              <a-tag v-for="tag in picture.tags" :key="tag">
                {{ tag }}
              </a-tag>
            </a-descriptions-item>
            <a-descriptions-item label="格式">
              {{ picture.picFormat ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="宽度">
              {{ picture.picWidth ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="高度">
              {{ picture.picHeight ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="宽高比">
              {{ picture.picScale ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="大小">
              {{ formatSize(picture.picSize) }}
            </a-descriptions-item>
          </a-descriptions>
        </a-card>
        <a-space wrap>
          <a-button type="primary" @click="doDownload">
            免费下载
            <template #icon>
              <DownloadOutlined />
            </template>
          </a-button>

          <a-button v-if="canEdit" type="default" @click="doEdit">
            编辑
            <template #icon>
              <EditOutlined />
            </template>
          </a-button>
          <a-button v-if="canEdit" danger @click="doDelete">
            删除
            <template #icon>
              <DeleteOutlined />
            </template>
          </a-button>
        </a-space>
      </a-col>
    </a-row>
  </div>
</template>

<script setup lang="ts">
import { computed, onMounted, ref } from 'vue'
import { deletePictureUsingPost, getPictureVoByIdUsingGet } from '@/api/pictureController.ts'
import { message } from 'ant-design-vue'
import { DeleteOutlined, EditOutlined, DownloadOutlined } from '@ant-design/icons-vue'
import { formatSize,downloadImage } from '@/utils'
import { useLoginUserStore } from '@/stores/useLoginUserStore.ts'
import router from '@/router'

const props = defineProps<{
  id: string | number
}>()

const picture = ref<API.PictureVo>({})

// 获取图片详情
const fetchPictureDetail = async () => {
  try {
    const res = await getPictureVoByIdUsingGet({
      id: props.id,
    })
    if (res.data.code === 0 && res.data.data) {
      picture.value = res.data.data
    } else {
      message.error('获取图片详情失败' + res.data.message)
    }
  } catch (e: any) {
    message.error('获取图片详情失败' + e.message)
  }
}

const loginUserStore = useLoginUserStore()
// 是否具有编辑权限
const canEdit = computed(() => {
  const loginUser = loginUserStore.loginUser
  // 未登录不可编辑
  if (!loginUser.id) {
    return false
  }
  // 仅本人或管理员可编辑
  const user = picture.value.userVo || {}
  return loginUser.id === user.id || loginUser.userRole === 'admin'
})
// 编辑图片
const doEdit = () => {
  console.log('图片id为：'+picture.value.id)
  router.push('/add_picture?id=' + picture.value.id,)
}

const doDelete = async () => {
  const id = picture.value.id
  if (!id) {
    return
  }
  const res = await deletePictureUsingPost({
    id: id,
  })
  if (res.data.code === 0) {
    message.success('删除成功')
    router.push({
      path: '/picture',
    })
  } else {
    message.error('删除失败')
  }
}
// 下载图片
const doDownload = () => {
  console.log('图片地址：'+picture.value.url)
  downloadImage(picture.value.url)
}

onMounted(() => {
  fetchPictureDetail()
})
</script>

<style scoped></style>
